#include<stdio.h>
#include<unistd.h>
#include<string.h>
int main()
{
    //fprintf(stdout,"hello fprintf\n");
    //printf("hello fprintf\n");
    //fputs("hello fprintf\n",stdout);
   // fprintf(stdout,"hello fprintf\n");
   // printf("hello printf\n");
   // fputs("hello fputs\n",stdout);
   // const  char*buff="my name is system call,write";
   // write(1,buff,strlen(buff));

    fprintf(stdout, "C: hello fprintf\n");
    printf("C: hello printf\n");
    fputs("C: hello fputs\n", stdout);
    const char *str = "system call: hello write\n";
    write(1, str, strlen(str));
    fork();
    return 0;
}
